Software Philosophy Behind DM

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SOFTWARE PHILOSOPHY BEHIND DM

DM was originally written in 1985 to provide the same functions for MS-DOS as a program called SWEEP did for CP/M. The main function of this program is to be able to select files from a list of files and then copy, move, or delete them with a single action. This program is designed to make these common functions as easy as possible.

In order to help you decide which files to copy, move, or delete, DM allows you to sort the file list by name, date, extension or size, and also to reverse the sorted order. DM also allows you to use a file mask (Example: *.BAK) to work with a group of files rather than all of the files in a directory.

The files are displayed in a vertical list. To move through the list, use the up and down-arrows, Page Up, Page Down, Home and End keys. The "G" (GOTO) command is provided to help you quickly locate a desired file in the list. Files are selected (marked) using the right-arrow key, and unselected (unmarked) using the left-arrow key. All files can be marked using Ctrl-Right-Arrow and unmarked using the Ctrl-Left-Arrow. A wild card mark is provided to mark all files which match the current mask. When files are marked they are simultaneously highlighted for action.

Once files are marked (highlighted) they can be copied or moved to another disk drive or subdirectory, or deleted. You can change file attributes on all marked files or run a program on all marked files. Copy, move, delete, and change file attributes can be performed on the file at the pointer (the "current" file). You can execute the file or run up to 30 predefined programs on it. You also can rename it or change it's date.

To help you move through the directory structure, the Tree Mode is provided which shows you only directories. By using the arrow keys, you can easily move back and forth between directories.

DM provides a status window that allows you to see the number of files, the total size of all files, the number of marked files, and the total size of all marked files. It shows the free space on the disk and provides additional information about the current file, indicated by a small arrow-shaped pointer. The current path, drive, and file mask information are also displayed in the status window.

DM allows you to execute programs or DOS commands on the file you are pointing to or on all marked files. The Autorun feature has the ability to figure out what program to run on a file by recognizing the name of the file's extension. This would be used if, for example, you are in your spreadsheet directory trying to determine which spreadsheets to delete. In the process you would like to look at them before marking them for deletion. By programming an AutoRun string to load your spreadsheet program and bring up the file at the pointer, DM will let you execute your spreadsheet program and load the file you are pointing to, then return to DM exactly where you left off.

DM is designed to be as intuitive as possible. If you get confused, press [F1] for help. The following one-letter commands work on the file at the pointer. [C] is for Copy, [D] for Delete, [M] is for Move, and [A] is for Attributes. The following commands have the same functions as described above but work on all marked files: [Alt-C] for Copy, [Alt-D] for Delete, [Alt-M] for Move and [Alt-A] for Attributes. (To use an Alternate or Control key combination, first press the Alternate or Control key, then the other key.) Other commands include [R] to Rename a file, [T] for Change Date, [F] for Freespace, [V] for View, [E] for Edit, [P] is for Patch, [G] for Goto, [S] for Sort, and [Q] to Quit.

Many of the functions of DM are especially helpful to the advanced computer user. If you don't understand all the functions of DM, just stick to the simple ones. As your knowledge of MS-DOS and computers grow, you will find more and more uses for DM.

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